Operation/Reference Guide
®
NetLinx Cardframe,
Control Cards,
and NetModules
NXC, NXF, and NXM Series
Last Revised: 10/24/2013
Central Controllers
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Table of Contents
Table of Contents
NXF CardFrame and NetModules ......................................................................1
NXF Cardframe Specifications ................................................................................. 1
Mounting Master/Hub Cards in an NXF CardFrame........................................................ 2
Setting the CardFrame's starting address....................................................................... 2
Device:Port:System (D:P:S).............................................................................................. 3
NXS-NMS NetModules specifications.............................................................................. 3
Mounting modules into an equipment rack..................................................................... 4
Installing Control Cards into an NXF CardFrame............................................................. 4
Preparing/connecting captive wires................................................................................ 4
Using the ID button......................................................................................................... 4
Specifications............................................................................................................ 5
NXC-COM2 Programming Information..................................................................... 6
NXC-COM2 Send_Commands ......................................................................................... 6
B9MOFF................................................................................................................................... 6
B9MON.................................................................................................................................... 6
CHARD..................................................................................................................................... 7
CHARDM.................................................................................................................................. 7
CTSPSH .................................................................................................................................... 7
CTSPSH OFF............................................................................................................................. 7
GET BAUD................................................................................................................................ 7
HSON....................................................................................................................................... 8
RXCLR ...................................................................................................................................... 8
RXON....................................................................................................................................... 8
SET BAUD ................................................................................................................................ 8
NXC-COM2 Send_String Escape Sequences ................................................................... 9
27,17,<time> ........................................................................................................................... 9
TSET BAUD .............................................................................................................................. 9
TXCLR ...................................................................................................................................... 9
XOFF........................................................................................................................................ 9
XON......................................................................................................................................... 9
27,18,0................................................................................................................................... 10
27,18,1................................................................................................................................... 10
27,19,<time> ......................................................................................................................... 10
27,20,0................................................................................................................................... 10
27,20,1................................................................................................................................... 10
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Specifications.......................................................................................................... 11
NXC-IRS4 4-Port IR/S Control Card ..................................................................15
Specifications.......................................................................................................... 15
CAROFF ................................................................................................................................. 16
CH.......................................................................................................................................... 17
CTOF...................................................................................................................................... 17
CTON ..................................................................................................................................... 17
GET MODE............................................................................................................................. 18
IROFF ..................................................................................................................................... 18
POD ....................................................................................................................................... 18
POF........................................................................................................................................ 18
PON ....................................................................................................................................... 18
PTOF ...................................................................................................................................... 19
PTON ..................................................................................................................................... 19
SET INPUT LINK ..................................................................................................................... 19
SET IO LINK............................................................................................................................ 19
SET MODE ............................................................................................................................. 20
SP........................................................................................................................................... 20
Specifications.......................................................................................................... 23
Pinouts and Functions............................................................................................. 23
NXC-REL10 Connections/Wiring............................................................................. 24
Specifications.......................................................................................................... 25
Pinouts and Functions............................................................................................. 26
Channel Assignments.............................................................................................. 26
NXC-VAI4 Output Level Assignments..................................................................... 28
NXC-VAI4 Input Level Assignments........................................................................ 29
AD MODE .............................................................................................................................. 29
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DEFAULT ALL......................................................................................................................... 29
GAS........................................................................................................................................ 29
GS .......................................................................................................................................... 30
LEVOFF .................................................................................................................................. 30
LEVON ................................................................................................................................... 30
PL........................................................................................................................................... 31
PN .......................................................................................................................................... 32
PU .......................................................................................................................................... 32
Specifications.......................................................................................................... 35
SEND_LEVEL ................................................................................................................. 38
PL........................................................................................................................................... 38
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NXF CardFrame and NetModules
NXF CardFrame and NetModules
Overview
®
NetLinx Control Cards can be installed in the NetLinx (NXF) CardFrame, the NI-4000, or in modules for stand-alone
operation. The NXF CardFrame accommodates a NetLinx Master (or Hub) card, up to twelve NetLinx Control cards,
and provides a back plane to distribute power and data to/from the cards. The NXF CardFrame provides terminals on the
rear panel for connection to the control cards and a system power supply. A DIP switch on the rear panel sets the
CardFrame's base device number. The NetLinx Control Cards covered in this document are:
•
•
•
•
•
•
NXC-COM2
NXC-I/O10
NXC-IRS4
NXC-REL10
NXC-VAI4
Dual COM Port Control Card
Input/Output Control Card
4-Port IR/S Control Card
Relay Control Card
Analog Voltage Control Card
Volume Control Card
NXC-VOL4
NXF CardFrame
FIG. 1 shows the front and rear panel components of the NXF CardFrame.
Control Card slots 1-12
1
2
3
4
5
6
7
8
9
10
11
12
Master/Hub Card slot
1
2
3
4
5
6
7
8
9
10
11
12
Cardframe number DIP Switch
2-pin 12V power connector
front
12
11
10
9
8
7
6
5
4
3
2
1
NXF
CARDFRAME
12VDC
1
2
1
2
1
2
1
2
1
2
1
2
CARDFRE NUMBER
2
3
2
3
2
3
2
3
2
3
2
3
ON
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
4
4
5
5
5
5
5
5
5
5
5
5
5
5
CARDFRAME
PWR
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
7
7
7
7
7
7
7
7
7
8
8
8
8
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
9
9
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
10
11
12
13
14
15
16
17
18
19
20
10
11
12
13
14
15
16
17
18
19
Master/Hub Card slot
12
11
10
9
8
7
6
5
4
3
2
1
Control Card slots 1-12
rear
FIG. 1 NXF CardFrame
NXF Cardframe Specifications
NXF Cardframe Specifications
Power Requirement
Dimensions (HWD)
Weight
12 VDC; varies with installed Control Cards.
3.5" x 17.0" x 9.6" (8.89 cm x 43.18 cm x 24.38 cm)
9.1 lbs (4.1 kg)
Front Panel Components:
Master/Hub Card slot
Houses the Master or Hub Card. Refer to the NetLinx Master Cards and Modules or
NetLinx Hub Cards and Modules instruction manuals for detailed information.
Control Card slots
12 card slots for the NetLinx Control Cards that control devices connected to the
CardFrame.
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NXF CardFrame and NetModules
NXF Cardframe Specifications (Cont.)
Rear Panel Components:
Card slots
Twelve 20-pin black (male) connectors and mating 3.5 mm captive-screw terminals
supplied with Control Cards.
Control Card connectors (1-12) 20-pin black (male) connectors that connect the Control Cards and external
equipment to the CardFrame.
+12 VDC PWR
2-pin green (male) connector for connecting a 12 VDC power supply. The CardFrame
can be powered via the Master Card (default) or by an external power supply
connected to the CardFrame's PWR connector. If a power supply is connected to the
PWR connector, the CardFrame power automatically switches to the connected
power supply. In that case, the Control Cards and CardFrame are independently
powered. A simple rule to follow is that if the CardFrame contains eight or more
Control Cards, use two 12 VDC power supplies.
CardFrame Number DIP switch Sets the starting address for the Control Cards in the CardFrame. The 8-position DIP
switch address range is 1-3072.
Front faceplate
Enclosure
Plastic gray faceplate with translucent viewing window.
Metal with black matte finish.
Mounting Master/Hub Cards in an NXF CardFrame
NetLinx Master and Hub Cards can be installed in the NXF CardFrame. The card mounts in a horizontal position,
through the master card slot on the rear panel of the NXF enclosure. To install a Master or Hub Card in an NXF:
1. Discharge the static electricity from your body by touching a grounded metal object.
2. Unplug all the connectors from the NXF.
3. Remove the two screws holding the front plate on the Master Card, and remove the front plate.
4. Align the edges of the card with the guide slots inside the Master Card slot on the NXF.
5. Slide the card about halfway into the slot.
6. Inside the Master Card slot on the NXF, locate the 6-pin control cable connector.
7. Plug the connector from the NXF into the 6-pin terminal on the Master Card. This connector is keyed to ensure
correct orientation.
8. Once the control cable is connected, gently slide the card all the way in until you feel the rear edge of the card
lightly snap into place.
9. Re-apply power and other connections as necessary.
Setting the CardFrame's starting address
The 8-position CardFrame Number DIP switch, located on the rear of the CardFrame (FIG. 1 on page 1), sets the starting
address (the device number in the D:P:S specification) for the Control Cards installed in the CardFrame. The address
range is 12-3060. The formula for setting the starting address is:
(DIP switch address x 12) + Card slot Number (1-12) = Card address
For example:
For DIP switch setting, 00010101: (0 + 0 + 0 + 0 + 96 + 0 + 384 + 1536) + SLOT #
(ex:1) = 2017.
A card in slot number 7 would be device address 2023.
1. Set the CardFrame Number DIP switch based on the information listed in the table below.
Position
1
2
3
4
5
6
7
8
Value
12
24
48
96
192
384
768
1536
2. Cycle power for approximately 5 seconds, so the system can read the new device number settings.
Factory default DIP switch value = 0 (zero) (All DIP switches are in the OFF position).
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NXF CardFrame and NetModules
Device:Port:System (D:P:S)
A device is any hardware component that can be connected to an AXlink or ICSNet bus. Each device must be assigned a
unique number to locate that device on the bus. The NetLinx programming language allows numbers in the range 0-
32,767. Device 0 refers to the local Master; numbers greater than 32,767 are reserved.
NetLinx requires a Device:Port:System (D:P:S) specification. This D:P:S triplet can be expressed as a series of
constants, variables separated by colons, or a DEV structure. For example:
STRUCTURE DEV
{
INTEGER Number // Device number
INTEGER Port
// Port on device
INTEGER System // System the device belongs to
}
The D:P:S notation is used to explicitly represent a device number, port and system. For example, 128:1:0 represents the
first port on device 128 on this system. If the system and Port specifications are omitted, (e.g. 128), system 0 (indicating
this system) and port 1 (the first port) is assumed. Here's the syntax:
NUMBER:PORT:SYSTEM
where:
NUMBER: 16-bit integer represents the device number
PORT:
16-bit integer represents the port number (in the range 1 through the number of ports
on the Controller or device)
SYSTEM: 16-bit integer represents the system number (0 = this system)
NXS-NMS NetModules
The NXS-NMS NetModules (FG2009-10) accommodate one NetLinx Control Card, and connect to the NetLinx bus via
ICSNet connections. The NetModules offer a simple and economical way to integrate additional functionality to control
Control Card slot
NetModule
front
Control Card connector
(20-pin)
20 19 18 17 16 15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
NXM-NMS
NetModule
Parallel 12 VDC
2-pin power
supply connectors
12VDC
PWR
ID
ICSNet
rear
ID Button
ICSNet RJ-45 connectors
FIG. 2 NXS-NMS NetLinx NetModule shell
NXS-NMS NetModules specifications
The table below lists the NXS-NMS specifications.
NXS-NMS NetModules Specifications
Dimensions (HWD)
ID button
1.50" x 5.55" x 9.25" (3.81 cm x 14.10 cm x 23.50 cm)
Generates an event from the NetModule to allow you to assign new Device and
System numbers, using ID mode in the NetLinx Studio software program (seeUsing
Control connector
20-pin black (male) connector that connects the NetModule to external devices.
These connectors are keyed to insure proper installation.
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NXF CardFrame and NetModules
NXS-NMS NetModules Specifications (Cont.)
ICSNet RJ-45 connectors
Receives power and data from a NetLinx Master/Hub ICSNet Port.
An ICSNet port on a NetLinx Master or Hub supplies up to 500 mA at 12 V for module
power.
12 VDC power supply connectors Two parallel male 2-pin (green) parallel connectors for 12 VDC power.
Enclosure
Metal with black matte finish
Included Accessories
Optional accessories
NetLinx faceplate
AC-RK Accessory Rack Kit (holds up to three NetModules)
Mounting modules into an equipment rack
To install the modules in an equipment rack using the optional AC-RK kit:
1. Remove the front faceplate from the module to expose the mounting holes.
2. Mount the module on the AC-RK bracket.
3. Place the AC-RK bracket (with the module) in the equipment rack and secure the bracket to the rack.
4. Replace the front faceplate on the module, and attach the translucent plastic cover to the faceplate (if necessary).
Installing Control Cards into an NXF CardFrame
1. Remove the magnetic front faceplate/viewing window from the CardFrame.
2. Align the edge of the Control Card with a slot in the CardFrame. Slide the card into the CardFrame and press until
you feel the Card seat in the backplane connector.
3. Put the magnetic faceplate back on the CardFrame. Secure with mounting screws (if necessary).
Preparing/connecting captive wires
1. Strip 0.25 inch of wire insulation off all wires.
2. Insert each wire into the appropriate opening on the connector according to the wiring diagrams and connector
types described in this section.
3. Tighten the screws to secure the wires in the connector. Do not tighten the screws excessively; doing so may strip
the threads and damage the connector.
Using the ID button
The ID Button on the rear panel of the NetModules (see FIG. 2) is used in conjunction with the NetLinx Studio software
program to allow you to assign new Device and System numbers for the Module.
1. Using NetLinx Studio, place the system in Identity (ID) Mode. ID Mode means the entire system is put on hold
while it waits for an event from any NetLinx device in the named system (for example, pushing the ID button on a
Module). The device generating the first event is the identified device.
2. Press the ID Mode button to generate an event from the Module and allow you to assign new Device and System
numbers in NetLinx Studio.
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NXC-COM2 Dual COM Port Control Card
NXC-COM2 Dual COM Port Control Card
The NXC-COM2 Dual COM Port Control Card (FG2022) provides two RS-232, RS-422, or RS-485 control ports and
LED feedback for remote sources connected to the NetLinx CardFrame, NI-4000 or NetModule. FIG. 3 shows the
COM2 card.
ICSNET Status LED
LED 1
LED 4
FIG. 3 NXC-COM2 Dual COM Port Control card
Specifications
NXC-COM2 Specifications
Power Requirements:
Operation:
140 mA @ 12 VDC
Data 1-2: Two RS-232/422/485 control ports, supports XON/XOFF, CTS/RTS,
300-230,400 baud
Status LEDs (2 per channel):
•
•
Red LED shows TX (transmit) data activity
Yellow LED shows RX (receive) data activity
- LED 1: CH1 TX (red)
- LED 2: CH1 RX (yellow)
- LED 3: CH2 TX (red)
- LED 4: CH2 RX (yellow)
•
Green ICSP status LED (located on the board):
- On = card is not in communication with the Master.
- Blinks (1-second intervals) during normal operation.
Connections/wiring:
DEVICE_ID:
Two 10-pin 3.5 mm captive-screw terminals
$0107
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NXC-COM2 Dual COM Port Control Card
Pinouts and Wiring Configuration
NXC-COM2 Pinouts
NXC-COM2 Wiring Configuration
Pin
1
Signal
GND
Function
RS-232 RS-422 RS-485
Signal ground
Receive data
Transmit data
Clear to send
Request to send
Transmit data
Transmit data
Receive data
Receive data
Power
X
X
X
X
X
X
2
RXD1
TXD1
CTS1
RTS1
TX1+
TX1-
3
4
5
6
X
X
X
X
X
X
X
X
(strap to pin 8)
(strap to pin 9)
(strap to pin 6)
(strap to pin 7)
7
8
RX1+
RX1-
9
10
11
12
13
14
15
16
17
18
19
20
+12 VDC
GND
Optional Optional
Signal ground
Receive data
Transmit data
Clear to send
Request to send
Transmit data
Transmit data
Receive data
Receive data
Power
X
X
X
X
X
X
RXD2
TXD2
CTS2
RTS2
TX2+
TX2-
X
X
X
X
X
X
X
X
(strap to pin 18)
(strap to pin 19)
(strap to pin 16)
(strap to pin 17)
RX2+
RX2-
+12 VDC
Optional Optional
NXC-COM2 Channel Assignment
NXC-COM2 Channel Assignment
Channel Description
255
CTS push channel - reflects the state of the CTS input if a 'CTSPSH' command was sent to the device.
NXC-COM2 Programming Information
NXC-COM2 Send_Commands
NXC-COM2 Send_Commands
Command
Description
B9MOFF
Disable 9-bit in 232/422/455 mode. This command works in conjunction with the B9MON command.
Syntax:
SEND_COMMAND <DEV>,"'B9MOFF'"
Example:
SEND_COMMAND SOMEDEVICE_1,"'B9MOFF'"
Sets the port settings on SOMEDEVICE to match the port's configuration settings.
B9MON
Enable 9-bit in 232/422/455 mode. This command works in conjunction with the B9MOFF command.
Syntax:
SEND_COMMAND <DEV>,"'B9MON'"
Example:
SEND_COMMAND SOMEDEVICE_1,"'B9MON'"
Resets the SOMEDEVICE port's communication parameters to nine data bits and one stop bit.
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NXC-COM2 Dual COM Port Control Card
NXC-COM2 Send_Commands (Cont.)
Command
Description
CHARD
Set the delay time between all transmitted characters to the value specified (in 100 microsecond
increments).
Syntax:
SEND_COMMAND <DEV>,"'CHARD-<time>'"
Variable:
time: 0 - 255. Measured in 100 microsecond increments.
Example:
SEND_COMMAND RS232_1,"'CHARD10'"
Sets a 1-millisecond delay between all transmitted characters.
CHARDM
Set the delay time between all transmitted characters to the value specified (in 1 millisecond increments).
Syntax:
SEND_COMMAND <DEV>,"'CHARDM-<time>'"
Variable:
time: 0 - 255. Measured in 1 millisecond increments.
Example:
SEND_COMMAND RS232_1,"'CHARDM10'"
Sets a 10-millisecond delay between all transmitted characters.
CTSPSH
Enable Pushes, Releases, and status information to be reported via channel 255 using the CTS
hardware handshake input. If Clear To Send (CTS) is high, the channel is On.
Syntax:
SEND_COMMAND <DEV>,"'CTSPSH'"
Example:
SEND_COMMAND RS232_1,"'CTSPSH'"
Sets the RS232_1 port to detect changes on the CTS input.
CTSPSH OFF Disable Pushes, Releases, and Status information to be reported via channel 255. If Clear To Send
(CTS) is high, the channel is on.
Syntax:
SEND_COMMAND <DEV>,"'CTSPSH OFF'"
Example:
SEND_COMMAND RS232_1,"'CTSPSH OFF'"
Turns off CTSPSH for the specified device. Disables the RS232_1 port to detect changes on the CTS
input.
GET BAUD
Get the RS-232/422/485 port’s current communication parameters. Device sends the response out the
Master program port.
Syntax:
SEND_COMMAND <DEV>,"'GET BAUD'"
Example:
SEND_COMMAND RS232_1,"'GET BAUD'"
Device responds with:
<port #>,<baud>,<parity>,<data>,<stop> 485 <ENABLED | DISABLED>
HSOFF
Disable hardware handshaking (default).
Syntax:
SEND_COMMAND <DEV>,"'HSOFF'"
Example:
SEND_COMMAND RS232_1,"'HSOFF'"
Disables hardware handshaking on the RS232_1 device.
7
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NXC-COM2 Dual COM Port Control Card
NXC-COM2 Send_Commands (Cont.)
Command
Description
HSON
Enable RTS (ready-to-send) and CTS (clear-to-send) hardware handshaking.
Syntax:
SEND_COMMAND <DEV>,"'HSON'"
Example:
SEND_COMMAND RS232_1,"'HSON'"
Enables hardware handshaking on the RS232_1 device.
RXCLR
RXOFF
RXON
Clear all characters in the receive buffer waiting to be sent to the Master.
Syntax:
SEND_COMMAND <DEV>,"'RXCLR'"
Example:
SEND_COMMAND RS232_1,"'RXCLR'"
Clears all characters in the receive buffer waiting to be sent to the Master.
Disable the transmission of incoming received characters to the Master (default).
Syntax:
SEND_COMMAND <DEV>,"'RXOFF'"
Example:
SEND_COMMAND RS232_1,"'RXOFF'"
Disable the transmission of incoming received characters to the Master (default).
Enables sending incoming received characters to the Master. This command is automatically sent by the
Master when a 'CREATE_BUFFER' program instruction is executed.
Syntax:
SEND_COMMAND <DEV>,"'RXON'"
Example:
SEND_COMMAND RS232_1,"'RXON'"
Start transmitting received characters to the Master (default).
SET BAUD
Set the RS-232/422/485 port's communication parameters.
Syntax:
SEND_COMMAND <DEV>,"'SET BAUD <baud>,<parity>,<data>,<stop> [485 <Enable|Disable>]'"
Variables:
Baud: baud rates are: 230400, 115200, 76800, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 600,
300, 150.
Parity: N (none), O (odd), E (even), M (mark), S (space)
Data: 7 or 8 data bits
Stop: 1 or 2 stop bits
485 Disable: Disables RS-485 mode and enables RS-232/422
485 Enable: Enables RS-485 mode and disables RS-234/422
Note: The only valid 9 bit combination is (baud),N,9,1.
Example:
SEND_COMMAND SOMEDEVICE_1,"'SET BAUD 115200,N,8,1, 485 ENABLE'"
Sets the SOMEDEVICE port's communication parameters to 115,200 baud, no parity, 8 data bits, 1 stop
bit, and enables RS-485 mode.
8
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NXC-COM2 Dual COM Port Control Card
NXC-COM2 Send_Commands (Cont.)
Command
Description
TSET BAUD Temporarily set the RS-232/422/485 port's communication parameters for a device. Works the same as
SET BAUD, except that the changes are not permanent, and the previous values will be restored if the
power is cycled on the device.
Syntax:
SEND_COMMAND <DEV>,"'TSET BAUD <baud>,<parity>,<data>,<stop> [485 <Enable | Disable>]'"
Variables:
Baud: baud rates are: 230400, 115200, 76800, 57600, 38400, 19200, 9600, 4800, 2400, 1200, 600,
300, 150.
Parity: N (none), O (odd), E (even), M (mark), S (space)
Data: 7 or 8 data bits
Stop: 1 or 2 stop bits
485 Disable: Disables RS-485 mode and enables RS-232/422
485 Enable: Enables RS-485 mode and disables RS-234/422
Note: The only valid 9 bit combination is (baud),N,9,1.
Example:
SEND_COMMAND RS232_1,"'TSET BAUD 115200,N,8,1 485 ENABLE'"
Sets the RS232_1 port's communication parameters to 115,200 baud, no parity, 8 data bits, 1 stop bit,
and enables RS-485 mode.
TXCLR
XOFF
XON
Stop and clear all characters waiting in the transmit out buffer and stops transmission.
Syntax:
SEND_COMMAND <DEV>,"'TXCLR'"
Example:
SEND_COMMAND RS232_1,"'TXCLR'"
Clears and stops all characters waiting in the RS232_1 device's transmit buffer.
Disable software handshaking (default).
Syntax:
SEND_COMMAND <DEV>,"'XOFF'"
Example:
SEND_COMMAND RS232_1,"'XOFF'"
Disables software handshaking on the RS232_1 device.
Enable software handshaking.
Syntax:
SEND_COMMAND <DEV>,"'XON'"
Example:
SEND_COMMAND RS232_1,"'XON'"
Enables software handshaking on the RS232_1 device.
NXC-COM2 Send_String Escape Sequences
NXC-COM2 Send_String Escape Sequences
Command Description
27,17,<time> Send a break character for a specified duration to a specific device.
Syntax:
SEND_STRING <DEV>,"27,17,<time>"
Variable:
time = 1 - 255. Measured in 100 microsecond increments.
Example:
SEND_STRING RS232_1,"27,17,10"
Sends a break character of 1 millisecond to the RS232_1 device.
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NXC-COM2 Dual COM Port Control Card
NXC-COM2 Send_String Escape Sequences (Cont.)
Command Description
27,18,0 Clear the ninth data bit by setting it to 0 on all character transmissions. Used in conjunction with the
'B9MON' command.
Syntax:
SEND_STRING <DEV>,"27,18,0"
Example:
SEND_STRING RS232_1,"27,18,0"
Sets the RS232_1 device's ninth data bit to 0 on all character transmissions.
27,18,1
Set the ninth data bit to 1 for all subsequent characters to be transmitted. Used in conjunction with the
'B9MON' command.
Syntax:
SEND_STRING <DEV>,"27,18,1"
Example:
SEND_STRING RS232_1,"27,18,1"
Sets the RS232_1 device's ninth data bit to 1 on all character transmissions.
27,19,<time> Insert a time delay before transmitting the next character.Syntax:
SEND_STRING <DEV>,"27,19,<time>"
Variable:
time = 1 - 255. Measured in 1 millisecond increments.
Example:
SEND_STRING RS232_1,"27,19,10"
Inserts a 10 millisecond delay before transmitting characters to the RS232_1 device.
27,20,0
27,20,1
Set the RTS hardware handshake's output to high (> 3V).
Syntax:
SEND_STRING <DEV>,"27,20,0"
Example:
SEND_STRING RS232_1,"27,20,0"
Sets the RTS hardware handshake's output to high on the RS232_1 device.
Set the RTS hardware handshake's output to low/inactive (< 3V).
Syntax:
SEND_STRING <DEV>,"27,20,1"
Example:
SEND_STRING RS232_1,"27,20,1"
Sets the RTS hardware handshake's output to low on the RS232_1 device.
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NXC-I/O10 Input/Output Control Card
NXC-I/O10 Input/Output Control Card
The NXC-I/O10 Input/Output Control Card (FG2021) provides 10 Input/Output channels and LED feedback. It acts as a
logic-level input and responds to switch closures or voltage level (high/ low) changes. The Switch (SW) and Voltage
(VO) modes are set with on-board jumpers. FIG. 4 shows the I/O10 card.
The I/Os on this card are not dry closure; they are electronic switches that float at 5V
when Off. Therefore, they should not be expected to work in situations that require
true dry contact (or dry closure).
The I/Os do work with AMX PC1, PC2, UPC20 and UPC20+.
SW/VO Jumpers (J1 - J5)
V-Clamp +12V/Open Jumper (J31)
SW/VO Jumpers (J16 - J30)
FIG. 4 NXC-I/O10 Control card
Specifications
NXC-I/O10 Specifications
Power Requirements
Operation
180 mA @ 12 VDC
I/O 1-10: ten Input/Output channels
Status LEDs (1 per channel
Modes:
Yellow LEDs light to show ON status activity
Switch
Senses switch or relay contact closures or provides a logic-level output.
Senses high- and low-voltage states.
Voltage
Voltage clamp settings:
12 V mode (default)
VO mode
Clamps any voltage connected to I/O ports 1-10 to 12 V.
Use for connections that will draw more than 12 V.
Two 10-pin 3.5 mm captive-screw terminals
Connections/wiring
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NXC-I/O10 Input/Output Control Card
Pinouts, Signals, and I/O Mode Functions
NXC-I/O10 Pinouts, Signals, and I/O Mode Functions
Pin
1
Signal
Common
I/O #1
SW mode Functions
Signal ground
Input #1
VO mode functions
Common #1
Input #1
2
3
Common
I/O #2
Signal ground
Input #2
Common #2
Input #2
4
5
Common
I/O #3
Signal ground
Input #3
Common #3
Input #3
6
7
Common
I/O #4
Signal ground
Input #4
Common #4
Input #4
8
9
Common
I/O #5
Signal ground
Input #5
Common #5
Input #5
10
11
12
13
14
15
16
17
18
19
20
Common
I/O #6
Signal ground
Input #6
Common #6
Input #6
Common
I/O #7
Signal ground
Input #7
Common #7
Input #7
Common
I/O #8
Signal ground
Input #8
Common #8
Input #8
Common
I/O #9
Signal ground
Input #9
Common #9
Input #9
Common
I/O #10
Signal ground
Input #10
Common #10
Input #10
NXC-I/O10 Channel Assignments
NXC-I/O Channel Assignment
Channel Description
1-10
Represent I/O channels 1-10
Setting the Switch/Voltage Mode Jumpers
The NXC-I/O10 responds to switch closures or voltage-level (high/low) changes. Compatible I/O devices include the
Power Control Sensor (PCS), tape transports and limit switches. The inputs are set for SW mode (closure) or VO mode
as described below.
SW (switch) Mode
setting (default)
Senses switch or relay contact closures or provides a logic-level
output. The 3-pin jumpers for each input should be set to SW before
wiring inputs to the Card. An "On" condition is triggered by contact
closures or a logic low of 0 to 1.5 VDC.
(Jumper pins 2 and 3)
An "Off" condition is triggered by a logic high of 2.5 to 5 VDC; set the
associated I/O to switch mode. When used for an output, each I/O
port acts as a switch to ground (GND), and is rated at 200 mA @ 12
VDC.
VO (voltage) Mode
setting
Senses high- and low-voltage states commonly from AC or DC
signals. This mode provides opto-isolation. The 3-pin jumpers for
each input should be set to VO (voltage mode) before wiring inputs to
the Card.
(Jumper pins 1 and 2)
An "On" condition is triggered by DC levels from 2.5 to 28 VDC (+ or
-), or AC levels from 2.5 to 24 VAC. An "Off" condition is triggered by
DC levels from 0 to 1.5 VDC (+ or -) or AC levels from 0 to 1.5 VAC.
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NXC-I/O10 Input/Output Control Card
In switch mode, the A terminals are connected to the NetLinx Controller's ground.
Sources that require isolation from the Controller's ground should use voltage mode,
and provide switched DC power for sensing as required.
Setting the Voltage Clamp Jumper (+12V or Open)
Set the V- Clamp jumper (J31) to +12 V (default) to clamp any voltage connected to I/O ports 1-10 to 12 V.
Set to Open for connections that will draw more than 12 V.
Remember, the +12 V and OPEN settings are only enabled when the I/O ports are set to SW mode. The V-Clamp jumper
settings are described below:
+12 V mode setting Use the default setting for all loads that require less than 12 V.
(default)
Open mode setting When this jumper is set to Open, and an I/O port is used as an output, the
I/O port is rated at 85 mA @ 28 VDC.
When this jumper is Open, it is the technician's responsibility to clamp the external source relay anytime the voltage
exceeds 12 V. The source relay should always be clamped if the voltage exceeds 12 V. Contact the relay manufacturer to
determine the size of the diode in the source relay.
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NXC-I/O10 Input/Output Control Card
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NXC-IRS4 4-Port IR/S Control Card
NXC-IRS4 4-Port IR/S Control Card
The NXC-IRS4 4-Port IR/S Control Card (FG2023) provides four IR/Serial input control ports with LED status
feedback.
Each port in the NXC-IRS4 stores programmed commands for IR- or serial-controlled devices. FIG. 5 shows the IRS4
card.
FIG. 5 NXC-IRS4 4-Port IR/Serial Control card
Specifications
NXC-IRS4 Specifications
Power Requirements 110 mA @ 12 VDC
Power
+12 VDC power for sensors
Operation:
IR 1-4
4 IR/Serial control ports
Input 1-4
4 input ports for closure or 0-5 VDC sensing, 200 mA
32K of IR memory shared between four ports.
Support of high-frequency carriers up to 1.14 MHz.
Memory
IR Frequency range
Status LEDs:
(2 LEDs per channel)
Red LED shows IR transmission activity/Yellow LED shows input status activity:
LED 1: Channel 1 Input (yellow)
LEDs light to indicate
ON status
LED 2: Channel 1 IR Out (red)
LED 3: Channel 2 Input (yellow)
LED 4: Channel 2 IR Out (red)
LED 5: Channel 3 Input (yellow)
LED 6: Channel 3 IR Out (red)
LED 7: Channel 4 Input (yellow)
LED 8: Channel 4 IR Out (red)
Connections/wiring
•
•
Two 2-pin 3.5 mm captive-screw terminals
Two CC-NIRC IR Emitters
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NXC-IRS4 4-Port IR/S Control Card
Pinouts, Signals, and Functions
NXC-IRS4 Pinouts, Signals, and Functions
Pin
1
Signal
GND
Function
Signal ground
IR data
Pin
10
11
Signal
Function
Input #1
Logic input
2
Output #1
GND
Input #2
Logic input
3
Signal ground
IR data
12
13
14
15
16
17
18
19
20
Input #3
Logic input
4
Output #2
GND
Input #4
Logic input
5
Signal ground
IR data
Power
+12 VDC
6
Output #3
GND
-----------------
-----------------
-----------------
-----------------
-----------------
-----------------
no connection
no connection
no connection
no connection
no connection
no connection
7
Signal ground
IR data
8
Output #4
GND
9
Signal ground
NXC-IRS4 Channel Assignments
The NXC-IRS4 channel settings listed in the following table set the IR output channels. The NXC-IRS4 can process up
to two IR or serial device channel setting commands simultaneously.
NXC-IRS4 Channel Assignments
Channel
1-255
Description
Generate the IR or serial command assigned to that channel.
1-199
Provide intelligent feedback; if a channel with no IR command turned On, the card will turn that channel
Off.
Ports 1-4
Generate PUSH and RELEASE statements corresponding to the state of inputs 1 - 4. A contact closure to
GND is reported as a PUSH.
•
•
•
The PUSH and RELEASE channel is 255.
Channel reporting status is 255.
Channel 255 changes are disabled after receipt of the ’PON’ command.
Programming Information
The following NetLinx Send_Commands control the NXC-IRS4 Control Card.
NXC-IRS4 Send_Commands
Command
Description
CAROFF
Disable the IR carrier signal until a 'CARON' command is received.
Syntax:
SEND_COMMAND <DEV>,"'CAROFF'"
Example:
SEND_COMMAND IR_1,"'CAROFF'"
Stops transmitting IR carrier signals to the IR_1 port.
CARON
Enable the IR carrier signals (default).
Syntax:
SEND_COMMAND <DEV>,"'CARON'"
Example:
SEND_COMMAND IR_1,"'CARON'"
Starts transmitting IR carrier signals to the IR_1 port.
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NXC-IRS4 4-Port IR/S Control Card
NXC-IRS4 Send_Commands (Cont.)
Command
Description
CH
Send IR pulses for the selected a channel. All channels below 100 are transmitted as two digits. If the
IR code for ENTER (function #21) is loaded, an Enter will follow the number. If the channel is greater
than or equal to (>=) 100, then IR function 127 or 20 (whichever exists) is generated for the one
hundred digit. Uses 'CTON' and 'CTOF' times for pulse times.
Syntax:
SEND_COMMAND <DEV>,"'CH',<Number>"
Variable:
channel number = 0 - 199.
Example:
SEND_COMMAND IR_1,"'CH',18"
The NXC-IRS4 performs the following:
•
•
•
•
Transmits IR signals for 1 (IR code 11). The transmit time is set with the CTON command.
Waits until the time set with the CTOF command elapses.
Transmits IR signals for 8 (IR code 18).
Waits for the time set with the CTOF command elapses. If the IR code for Enter (IR code 21) is
programmed, the IRS4 performs the following steps.
•
Transmits IR signals for Enter (IR code 21).
Waits for the time set with the CTOF command elapses.
CP
Halt and Clear all active or buffered IR commands, and then send a single IR pulse. You can set the
Pulse and Wait times with the 'CTON' and 'CTOF' commands.
Syntax:
SEND_COMMAND <DEV>,"'CP',<code>"
Variable:
code = IR port's channel value 0 - 252 (253 - 255 reserved).
Example:
SEND_COMMAND IR_1,"'CP',2"
Clears the active/buffered commands and pulses IR_1 port's channel 2.
CTOF
Set the duration of the Off time (no signal) between IR pulses for channel and IR function
transmissions. Off time settings are stored in non-volatile memory. This command sets the delay time
between pulses generated by the 'CH' or 'XCH' send commands in tenths of seconds.
Syntax:
SEND_COMMAND <DEV>,"'CTOF',<time>"
Variable:
time = 0 - 255. Given in 1/10ths of a second. Default is 5 (0.5 seconds).
Example:
SEND_COMMAND IR_1,"'CTOF',10"
Sets the Off time between each IR pulse to 1 second.
CTON
Set the total time of IR pulses transmitted and is stored in non-volatile memory. This command sets
the pulse length for each pulse generated by the 'CH' or 'XCH' send commands in tenths of seconds.
Syntax:
SEND_COMMAND <DEV>,"'CTON',<time>"
Variable:
time = 0 - 255. Given in 1/10ths of a second. Default is 5 (0.5 seconds).
Example:
SEND_COMMAND IR_1,"'CTON',20"
Sets the IR pulse duration to 2 seconds.
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NXC-IRS4 4-Port IR/S Control Card
NXC-IRS4 Send_Commands (Cont.)
Command
Description
GET MODE
Poll the IR/Serial port's configuration parameters and report the active mode settings to the device
requesting the information.
The port responds with: <port #> <mode>,<carrier>,<io link channel>.
Syntax:
SEND_COMMAND <DEV>,"'GET MODE'"
Example:
SEND_COMMAND IR_1,"'GET MODE"
The system could respond with:
PORT 4 IR,CARRIER,IO LINK 0
IROFF
Halt and Clear all active or buffered IR commands being output on the designated port.
Syntax:
SEND_COMMAND <DEV>,"'IROFF'"
Example:
SEND_COMMAND IR_1,"'IROFF"
Immediately halts and clears all IR output signals on the IR_1 port.
POD
Disable previously active 'PON' (power on) or 'POF' (power off) command settings. Channel 255
changes are enabled. This command is used in conjunction with the I/O Link command.
Syntax:
SEND_COMMAND <DEV>,"'POD'"
Example:
SEND_COMMAND IR_1,"'POD"
Disables the 'PON' and 'POF' command settings on the IR_1 device.
POF
Turn OFF a device connected to an IR port based on the status of the corresponding I/O Link input. If
at any time the IR sensor input reads that the device is ON (such as if someone turned it on manually
at the front panel), IR function 28 (if available) or IR function 9 is automatically generated in an
attempt to turn the device back OFF. If three attempts fail, the IR port will continue executing
commands in the buffer.
If there are no commands in the buffer, the IR port will continue executing commands in the buffer
and trying to turn the device OFF until a 'PON' or 'POD' command is received. If the IR port fails to
turn the device OFF, a PUSH and RELEASE is made on channel 254 to indicate a power failure
error. You can only use the 'PON' and 'POF' commands when an IR device has a linked I/O channel.
Channel 255 changes are disabled after receipt of this command. You can only use the PON and
POF commands when an IR device has a linked I/O channel.
Syntax:
SEND_COMMAND <DEV>,"'POF'"
Example:
SEND_COMMAND IR_1,"'POF'"
Sends power down IR commands 28 (if present) or 9 to the IR_1 device.
PON
Turn ON a device connected to an IR port based on the status of the corresponding I/O Link input. If
at any time the IR sensor input reads that the device is OFF (such as if one turned it off manually at
the front panel), IR function 27 (if available) or IR function 9 is automatically generated in an attempt
to turn the device back ON. If three attempts fail, the IR port will continue executing commands in the
buffer and trying to turn the device On.
If there are no commands in the buffer, the IR port will continue trying to turn the device ON until a
'POF' or 'POD' command is received. If the IR port fails to turn the device ON, a PUSH and
RELEASE is made on channel 254 to indicate a power failure error. You can only use the 'PON' and
'POF' commands when an IR device has a linked I/O channel. Channel 255 changes are disabled
after receipt of this command.
Syntax:
SEND_COMMAND <DEV>,"'PON'"
Example:
SEND_COMMAND IR_1,"'PON'"
Sends power up IR commands 27 or 9 to the IR_1 port.
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NXC-IRS4 4-Port IR/S Control Card
NXC-IRS4 Send_Commands (Cont.)
PTOF
Set the time duration between power pulses in .10-second increments.
This time increment is stored in permanent memory. This command also sets the delay between
pulses generated by the 'PON' or 'POF' send commands in tenths of seconds. It also sets the delay
required after a power ON command before a new IR function can be generated. This gives the
device time to power up and get ready for future IR commands. It also sets the delay required after a
power ON command before a new IR function can be generated. This gives the device time to power
up and get ready for future IR commands.
Syntax:
SEND_COMMAND <DEV>,"'PTOF',<time>"
Variable:
time = 0 - 255. Given in 1/10ths of a second. Default is 15 (1.5 seconds).
Example:
SEND_COMMAND IR_1,"'PTOF',15"
Sets the time between power pulses to 1.5 seconds for the IR_1 device.
PTON
Set the time duration between power pulses in .10-second increments.
This time increment is stored in permanent memory. This command also sets the pulse length for
each pulse generated by the 'PON' or 'POF' send commands in tenths of seconds.
Syntax:
SEND_COMMAND <DEV>,"'PTON',<time>"
Variable:
time = 0 - 255. Given in 1/10ths of a second. Default is 5 (0.5 seconds).
Example:
SEND_COMMAND IR_1,"'PTON',15"
Sets the duration of the power pulse to 1.5 seconds for the IR_1 device.
SET INPUT LINK Sets an IR device to link to an input channel for use with 'PON' and 'POF' commands. The input
channel is used for power sensing (via a PCS). A channel of zero disables the link.
Syntax:
SEND_COMMAND <DEV>,"'SET INPUT LINK <channel>'"
Variable:
channel = 1 - 4. Setting the channel to 0 disables the link.
Example:
SEND_COMMAND IR_1,"'SET INPUT LINK 1'"
Sets the IR_1 port link to I/O channel 1. The IR port uses the specified input as power status for
processing PON and POF commands.
SET IO LINK
Link an IR or Serial port to a selected I/O channel for use with the 'DE', 'POD', 'PON', and 'POF'
commands. The I/O status is automatically reported on channel 255 on the IR port. The I/O channel
is used for power sensing (via a PCS or VSS). A channel of zero disables the I/O link.
Syntax:
SEND_COMMAND <DEV>,"'SET IO LINK <I/O number>'"
Variable:
I/O number = 1 - 4. Setting the I/O channel to 0 disables the I/O link.
Example:
SEND_COMMAND IR_1,"'SET INPUT LINK 1'"
Sets the IR_1 port link to I/O channel 1. The IR port uses the specified input as power status for
processing PON and POF commands.
Note: This command is included for older programs only. The Input port is not an I/O. No output
functions are available.’SET IO LINK’ applies the same configuration as the ’SET INPUT LINK’
command.
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NXC-IRS4 4-Port IR/S Control Card
NXC-IRS4 Send_Commands (Cont.)
Command
Description
SET MODE
Set the IR/Serial ports for IR or Serial-controlled devices connected to a CardFrame or NetModule.
Syntax:
SEND_COMMAND <DEV>, 'SET MODE <mode>'"
Variable:
mode = IR or SERIAL.
Example:
SEND_COMMAND IR_1,"'SET MODE IR'"
Sets the IR_1 port to IR mode for IR control.
SP
Generate a single IR pulse. You can use the 'CTON' to set pulse lengths and the 'CTOF' for time off
between pulses.
Syntax:
SEND_COMMAND <DEV>,"'SP',<code>"
Variable:
code = IR code value 1 - 252 (253-255 reserved).
Example:
SEND_COMMAND IR_1, "'SP',25"
Pulses IR code 25 on IR_1 device.
XCH
Transmit the selected channel IR codes in the format/pattern set by the 'XCHM' send command.
Syntax:
SEND_COMMAND <DEV>,"'XCH <channel>'"
Variable:
channel = 0 - 999.
Example:
For detailed usage examples, refer to the 'XCHM' command.
XCHM
Changes the IR output pattern for the 'XCH' send command.
Syntax:
SEND_COMMAND <DEV>,"'XCHM-<extended channel mode>'"
Variable:
extended channel mode = 0 - 4.
Example:
SEND_COMMAND IR_1,"'XCHM-3'"
Sets the IR_1 device's extended channel command to mode 3.
Mode 0 Example (default): [x][x]<x><enter>
SEND_COMMAND IR_1,"'XCH-3'"
Transmits the IR code as 3-enter.
SEND_COMMAND IR_1,"'XCH-34'"
Transmits the IR code as 3-4-enter.
SEND_COMMAND IR_1,"'XCH-343'"
Transmits the IR code as 3-4-3-enter.
Mode 1 Example: <x> <x> <x> <enter>
SEND_COMMAND IR_1,"'XCH-3'"
Transmits the IR code as 0-0-3-enter.
SEND_COMMAND IR_1,"'XCH-34'"
Transmits the IR code as 0-3-4-enter.
SEND_COMMAND IR_1,"'XCH-343'"
Transmits the IR code as 3-4-3-enter.
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NXC-IRS4 4-Port IR/S Control Card
NXC-IRS4 Send_Commands (Cont.)
Command
Description
XCHM (Cont.)
Mode 2 Example: <x> <x> <x>
SEND_COMMAND IR_1,"'XCH-3'"
Transmits the IR code as 0-0-3.
SEND_COMMAND IR_1,"'XCH-34'"
Transmits the IR code as 0-3-4.
SEND_COMMAND IR_1,"'XCH-343'"
Transmits the IR code as 3-4-3.
Mode 3 Example: [[100][100]…] <x> <x>
SEND_COMMAND IR_1,"'XCH-3'"
Transmits the IR code as 0-3.
SEND_COMMAND IR_1,"'XCH-34'"
Transmits the IR code as 3-4.
SEND_COMMAND IR_1,"'XCH-343'"
Transmits the IR code as 100-100-100-4-3.
Mode 4: Mode 4 sends the same sequences as the 'CH' command. Only use Mode 4 with channels
0 - 199.
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NXC-IRS4 4-Port IR/S Control Card
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NXC-REL10 Relay Control Card
NXC-REL10 Relay Control Card
The NXC-REL10 Relay Control Card (FG2020) provides ten relays that support devices that employ simple momentary
NO and NC 3-pin jumpers J1 - J5
NO and NC 3-pin jumpers J6 - J10
FIG. 6 NXC-REL10 Relay 10 Control card
Specifications
NXC-REL10 Specifications
Power Requirements:
Operation:
LEDs:
260 mA @ 12 VDC
Relay 1-10: ten relays, 1A @ , 24 VAC / 28 VDC
Ten red LEDs light to show ON status activity for each relay
Wiring:
•
•
Two 10-pin 3.5 mm captive-screw terminals
Commoning strip (metal)
Pinouts and Functions
NXC-REL10 Pinouts and Functions
Pin
1
Function
Relay 1A
Relay 1B
Relay 2A
Relay 2B
Relay 3A
Relay 3B
Relay 4A
Relay 4B
Relay 5A
Relay 5B
Pin
11
Function
Relay 6A
Relay 6B
Relay 7A
Relay 7B
Relay 8A
Relay 8B
Relay 9A
Relay 9B
Relay 10A
Relay 10B
2
12
13
14
15
16
17
18
19
20
3
4
5
6
7
8
9
10
NXC-REL10 Channel Assignments
Channels 1-10 represent relays 1-10.
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NXC-REL10 Relay Control Card
NXC-REL10 Connections/Wiring
The NXC-REL10 Control Card has 10 relays that are independently controlled and electrically isolated.
The relay contacts are rated for a maximum of 1 A @ 0-24 VAC or 0-28 VDC (resistive).
Jumpers located on the Card allow you to select Normally Open (NO) or Normally Closed (NC) contact settings:
NO (Normally open
Jumper pins 1 and 2 (default).
NC (Normally closed) Jumper pins 2 and 3.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Analog Voltage Control Card
The NXC-VAI4 Analog Voltage Control Card (FG2025) provides four independent analog-to-digital inputs and four
independent digital-to-analog outputs, which are controllable over the ICSP network.
Each port can be configured for a variety of DC input and output signals.
The NXC-VAI4 incorporates the functionality of the AXC-VAI2 and AXC-VRG AXlink cards. FIG. 7 shows the VAI4
card:
FIG. 7 NXC-VAI4 Analog Voltage Control card
Specifications
NXC-VAI4 Specifications
Power Requirements
Inputs
330 mA @ 12 VDC
Four high-impedance analog DC inputs.
Four analog DC outputs (user-configurable).
Outputs
D/A, A/D conversion
A/D and D/A converters for analog sampling and control. 8 or 10-bit; user-selectable via
page 29 for details)
Available input voltages
Available output voltages:
-12 V to +12 V
0 V to +12 V
The output voltage may be software-configured for any min. and max. levels between -
12 and +12 VDC.
•
•
Maximum output current = 60 mA per output.
Over-voltage protection to +28 VDC.
External reference
A user supplied external reference voltage can be used to set the maximum voltage
range for the D/A outputs. The full analog output range is scaled to fit the maximum
range set by the external reference.
Output voltage may be set to any level between 0-12 VDC, referenced to the external
reference voltage input and NXC-VAI4 power supply GND.
External reference input:
(EREF - one for each output)
•
•
Maximum external reference input voltage = +12 VDC.
Over-voltage protection to +28 VDC.
Internal reference output:
(IREF)
•
•
+5 V reference output, maximum current = 60 mA.
This output is intended to drive a ground-referenced load.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Specifications (Cont.)
I/O Status LEDs 1-8:
(two LEDs per channel)
•
4 yellow LED's (one per channel) light to indicate input signal changes reported to the
Master.
Note: LEDs light to indicate
ON status.
•
4 red LED's (one per channel) light to indicate output signal changes.
LED 1: Output #1 (red)
LED 2: Input #1 (yellow)
LED 3: Output #2 (red)
LED 4: Input #2 (yellow)
LED 5: Output #3 (red)
LED 6: Input #3 (yellow)
LED 7: Output #4 (red)
LED 8: Input #4 (yellow)
The card is shipped in "factory-default" mode (i.e. the levels have not been configured
for each channel). The Output (red) LEDs blink in sequence to indicate that the power-
up or limit levels have not been set. The Output LED for each channel will continue to
blink until the channel has been calibrated.
Wiring
Captive-wire connectors.
Pinouts and Functions
NXC-VAI4 Pinouts, Signals, and Functions
Pin
1
Function
Pin
9
Function
Output #1 (GND)
Output #1
Input #1 (GND)
Input #1
2
10
11
12
13
14
15
16
17
18
19
20
3
Output #2 (GND)
Output #2
Input #2 (GND)
Input #2
4
5
Output #3 (GND)
Output #3
Input #3 (GND)
Input #3
6
7
Output #4 (GND)
Output #4
Input #4 (GND)
Input #4
8
+5 V Reference output (GND)
+5 V Reference output
External Reference input (GND)
External Reference input
Channel Assignments
The channel ON/OFF assignments for the NXC-VAI4 are described in the following table.
Off = 50% voltage, and all channel assignments are mutually exclusive.
NXC-VAI4 Channel Assignments
Channel
State
Function
1
ON
While channel 1 is ON, the voltage on Output 1 will ramp up at the "CURRENT OUTPUT 1
RAMP UP TIME" rate. The voltage ramp stops if the maximum is reached.
OFF
ON
Stops voltage ramping on Output 1 at current value.
2
3
While channel 2 is ON, the voltage on Output 2 will ramp up at the "CURRENT OUTPUT 2
RAMP UP TIME" rate. The voltage ramp stops if the maximum is reached.
OFF
ON
Stops voltage ramping on Output 2 at current value.
While channel 3 is ON, the voltage on Output 3 will ramp up at the "CURRENT OUTPUT 3
RAMP UP TIME" rate. The voltage ramp stops if the maximum is reached.
OFF
Stops voltage ramping on Output 3 at current value.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Channel Assignments (Cont.)
Channel
State
Function
4
ON
While channel 4 is ON, the voltage on Output 4 will ramp up at the "CURRENT OUTPUT 4
RAMP UP TIME" rate. The voltage ramp stops if the maximum is reached.
OFF
ON
Stops voltage ramping on Output 4 at current value.
5
6
7
8
While channel 5 is ON, the voltage on Output 1 will ramp down at the "CURRENT OUTPUT 1
RAMP DOWN TIME" rate. The voltage ramp stops if the minimum is reached.
OFF
ON
Stops voltage ramping on Output 1 at current value.
While channel 6 is ON, the voltage on Output 2 will ramp down at the "CURRENT OUTPUT 2
RAMP DOWN TIME" rate. The voltage ramp stops if the minimum is reached.
OFF
ON
Stops voltage ramping on Output 2 at current value.
While channel 7 is ON, the voltage on Output 3 will ramp down at the "CURRENT OUTPUT 3
RAMP DOWN TIME" rate. The voltage ramp stops if the minimum is reached.
OFF
ON
Stops voltage ramping on Output 3 at current value.
While channel 8 is ON, the voltage on Output 4 will ramp down at the "CURRENT OUTPUT 4
RAMP DOWN TIME" rate. The voltage ramp stops if the minimum is reached.
OFF
ON
Stops voltage ramping on Output 4 at current value.
Reserved [do not use]
9
OFF
ON
Reserved [do not use]
10
11
12
13
14
15
16
17
18
19
20
21
22
While channel 10 is ON, the voltage on Output 1 is set to 100%
Sets Output 1 voltage to 50%.
OFF
ON
While channel 11 is ON, the voltage on Output 2 is set to 100%
Sets Output 2 voltage to 50%.
OFF
ON
While channel 12 is ON, the voltage on Output 3 is set to 100%
Sets Output 3 voltage to 50%.
OFF
ON
While channel 13 is ON, the voltage on Output 4 is set to 100%
Sets Output 4 voltage to 50%.
OFF
ON
While channel 14 is ON, the voltage on Output 1 is set to 0%
Sets Output 1 voltage to 50%.
OFF
ON
While channel 15 is ON, the voltage on Output 2 is set to 0%
Sets Output 2 voltage to 50%.
OFF
ON
While channel 16 is ON, the voltage on Output 3 is set to 0%
Sets Output 3 voltage to 50%.
OFF
ON
While channel 17 is ON, the voltage on Output 4 is set to 0%
Sets Output 4 voltage to 50%.
OFF
ON
While channel 18 is ON, the voltage on Output 1 is set to 75%
Sets Output 1 voltage to 50%.
OFF
ON
While channel 19 is ON, the voltage on Output 2 is set to 75%
Sets Output 2 voltage to 50%.
OFF
ON
While channel 20 is ON, the voltage on Output 3 is set to 75%
Sets Output 3 voltage to 50%.
OFF
ON
While channel 21 is ON, the voltage on Output 4 is set to 75%
Sets Output 4 voltage to 50%.
OFF
ON
While channel 22 is ON, the voltage on Output 1 is set to 25%
Sets Output 1 voltage to 50%.
OFF
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Channel Assignments (Cont.)
Channel
State
ON
Function
23
While channel 23 is ON, the voltage on Output 2 is set to 25%
Sets Output 2 voltage to 50%.
OFF
ON
24
25
While channel 24 is ON, the voltage on Output 3 is set to 25%
Sets Output 3 voltage to 50%.
OFF
ON
While channel 25 is ON, the voltage on Output 4 is set to 25%
Sets Output 4 voltage to 50%.
OFF
NXC-VAI4 Output Level Assignments
NXC-VAI4 Output Level Assignments
Level Description
1
2
3
4
8 bit field; sets voltage on Output 1 to the value commanded.
The range is 0-255.
Conflicts with channels 1, 5, 10, 14, 18, 22.
8 bit field; sets voltage on Output 2 to the value commanded.
The range is 0-255.
Conflicts with channels 2, 6, 11, 15, 19, 23.
8 bit field; sets voltage on Output 3 to the value commanded.
The range is 0-255.
Conflicts with channels 3, 7, 12, 16, 20, 24.
8 bit field; sets voltage on Output 4 to the value commanded.
The range is 0-255.
Conflicts with channels 4, 8, 13, 17, 21, 25.
5
6
7
8
8/16 bit field; commands that Output 1 be set to "CURRENT OUTPUT 1 SPEED" of the appropriate polarity until
the voltage read at Input 1 is within "INPUT 1 MAXIMUM DEVIATION" of this value.
Conflicts with channels 1, 5, 10, 14, 18, 22.
8/16 bit field; commands that Output 2 be set to "CURRENT OUTPUT 2 SPEED" of the appropriate polarity until
the voltage read at Input 2 is within "INPUT 2 MAXIMUM DEVIATION" of this value.
Conflicts with channels 2, 6, 11, 15, 19, 23.
8/16 bit field, commands that Output 3 be set to "CURRENT OUTPUT 3 SPEED" of the appropriate polarity until
the voltage read at Input 3 is within "INPUT 3 MAXIMUM DEVIATION" of this value.
Conflicts with channels 3, 7, 12, 16, 20, 24.
8/16 bit field, commands that Output 4 be set to "CURRENT OUTPUT 4 SPEED" of the appropriate polarity until
the voltage read at Input 4 is within "INPUT 4 MAXIMUM DEVIATION" of this value.
Conflicts with channels 4, 8, 13, 17, 21, 25.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Input Level Assignments
NXC-VAI4 Input Level Assignments
Level Description
1
2
3
4
5
8 bit field, returns the current output voltage code for Output 1 (range= 0 to 255).
8 bit field, returns the current output voltage code for Output 2 (range= 0 to 255).
8 bit field, returns the current output voltage code for Output 3 (range= 0 to 255).
8 bit field, returns the current output voltage code for Output 4 (range= 0 to 255).
8/16 bit field, returns the current input voltage for Input 1 (range= 0 to 255 or 0-65535, depending on the
ADMODE setting. See the AD MODE Send Command for details).
6
7
8
8/16 bit field, returns the current input voltage for Input 2 (range= 0 to 255 or 0-65535, depending on the
ADMODE setting. See the AD MODE Send Command for details).
8/16 bit field, returns the current input voltage for Input 3 (range= 0 to 255 or 0-65535, depending on the
ADMODE setting. See the AD MODE Send Command for details).
8/16 bit field, returns the current input voltage for Input 4 (range= 0 to 255 or 0-65535, depending on the
ADMODE setting. See the AD MODE Send Command for details).
Programming Information
These NetLinx Send_Commands control the NXC-VAI4:
NXC-VAI4 Send_Commands
Command
Description
AD MODE
Sets the format for data reporting to either 8 or 10 significant bits (16 bit format with 10 significant bits).
Even though the output is specified in the command, the format change really applies to the
corresponding input. Input level changes and commanded positions are in this format. The reporting of
the output levels is unaffected. The default format is 8 bits.
Syntax:
SEND_COMMAND <DEV>,'AD MODE <OUTPUT> 8|10'
Variable:
OUTPUT: Any Output ('1', '2, '3', 4')
Examples:
SEND_COMMAND <DEV>,'AD MODE 2 8'
Sets the reporting format for Input 2 to 8 bits. (0-255)
SEND_COMMAND <DEV>,'AD MODE 1 10'
Sets the input reporting format for Input 1 to 10 significant bits (0 - 65535)
DEFAULT
Sets all card settings (except for calibration) back to original factory settings.
Syntax:
SEND_COMMAND <DEV>,'DEFAULT'
DEFAULT ALL Sets all card settings back to original factory settings.
Syntax:
SEND_COMMAND <DEV>,'DEFAULT ALL'
GAS
Sets the slowdown distance and slowdown speed. When these variables have been set, and a GL
command is in progress, the speed output on Output <x> will be reduced to that specified when the
position as read on Output <x+4> is within the distance specified away from the target position.
Syntax:
SEND_COMMAND <DEV>,'G<OUTPUT>A<DISTANCE>S<SPEED>'
Variables:
OUTPUT: Any Output '1', '2', '3', or '4'
DISTANCE: 0-127
SPEED: 0-127
Example:
SEND_COMMAND <DEV>,'G1A127S127'
Sets Output 1 slowdown distance to 127 (max) at full speed.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Send_Commands (Cont.)
Command
Description
GD
Sets the maximum allowable deviation of final servo position when executing the GL command. The
level of the specified input or output will only be reported when a change greater than this deviation
occurs. Deviation 0 is most accurate, but can have some oscillation, so the default is 2, i.e. the position
as read at corresponding input I/O <x+4> can be within +/-2 from the specified position.
Syntax:
SEND_COMMAND <DEV>,'G<I/O>D<DEVIATION>'
Variables:
I/O: Any input or output ('1', '2', '3', '4', '5', '6', '7'. '8')
DEVIATION: Number between 0 and 127 (default = 2)
Example:
SEND_COMMAND <DEV>,'G1D10'
Sets I/O 1 servo output to 10.
GL
This command puts the card in servo (positional) control mode. The range of the position is 0-255 (if AD
MODE is set to '8'), or 0-65535 (if AD MODE is set to '10'). See AD MODE earlier in this section for
details.Position 0 is the low end of the potentiometer (lowest voltage); position 255 (or 65535) is the
high end of the potentiometer (highest voltage) with 128 (or 32768) as the middle of the range.
Syntax:
SEND_COMMAND <DEV>,'G<OUTPUT>L<POSITION>'
Variables:
I/O: Any Output ('1', '2, '3', 4')
POSITION: Number between 0-255 or 0-65535 (depends on AD MODE)
Example (Assuming the current position is 0):
SEND_COMMAND <DEV>,'G1L255'
Sets Output 1 to "CURRENT OUTPUT 1 SPEED" (positive) and waits until Input 1 reads within
"OUTPUT 1 MAXIMUM DEVIATION" of 255 and then resets the output to zero speed. The speed output
may have a more complex profile than as set by the "GAS" command.
GS
Sets the speed variable to be used for future positional (GL) commands. The change of speed takes
place immediately even if a positional change operation is currently in progress. The voltage output for
speed 0 (i.e. when no motion is desired) is at the mid-point between the Min and Max output voltages.
The positive speed 127 is the max and negative speed 127 is the min. Other speeds are scaled
proportionately.
Syntax:
SEND_COMMAND <DEV>,'G<OUTPUT>S<SPEED>'
Variable:
I/O: Any Output ('1', '2, '3', 4')
SPEED: A fixed output value in the range of 0 (slowest)-127 (fastest - default)
Example:
SEND_COMMAND <DEV>,'G1S64'
Sets Output 1 servo speed to 64 (50%).
LEVOFF
LEVON
The NXC-VAI4 will not transmit any level value messages after the receipt of this command until the
receipt of the LEVON command.
Syntax:
SEND_COMMAND <DEV>,'LEVOFF'
The NXC-VAI4 will not transmit any level value messages until after the receipt of this command. This
command is sent automatically when the CREATE_LEVEL command is executed.
Syntax:
SEND_COMMAND <DEV>,'LEVON'
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Send_Commands (Cont.)
Command
Description
PC
Sets the shape of the Output <x> voltage ramps.
Syntax:
SEND_COMMAND <DEV>,'P<OUTPUT>C<CURVE>'
Variables:
OUTPUT: Any Output ('1', '2', '3', or '4')
CURVE:
'N' - Normal linear
'L' - Logarithmic
'I' - Inverted logarithmic
Example:
SEND_COMMAND <DEV>,'P1CL'
Sets "CURRENT OUTPUT 1 RAMP CURVE" to logarithmic.
PE
Selects which voltage reference (if any) is to be used for scaling of the output voltage. The specified
output will then remain proportional to the specified input.
Syntax:
SEND_COMMAND <DEV>,'P<OUTPUT>E<REFERENCE SELECTION> B|U'
Variables:
OUTPUT: any Output ('1', '2', '3', or '4')
Reference selection:
’N’ - Normal/None: Uses no reference scaling.
’E’ - External: Use the External Reference input to scale the output.
’I’ - Input: Use the corresponding <x+4> input as the reference for the
output.
B|U: Bipolar or Unipolar (has no meaning for reference selection 'N')
Unipolar mode sets the voltage range to between 0V and +reference voltage.
Bipolar mode sets the output voltage range to between -reference voltage and +reference voltage.
Examples:
SEND_COMMAND <DEV>,'P1EN'
Sets Output 1 to use no reference (MIN/MAX limits are used instead.).
SEND_COMMAND <DEV>,'P3EEU'
Sets Output 3 to use the External Reference input for scaling. The output voltages will range from 0 to
the external reference voltage.
SEND_COMMAND <DEV>,'P3EIB'
Sets Output 3 to use Input 7 for scaling. The output voltages will range from -input reading to +input
reading.
PL
Ramps the specified output from its current level value to the specified level value or specified
percentage of maximum at the rate specified by "CURRENT OUTPUT <x> RAMP UP TIME" or
optionally in the specified amount of time.
Syntax:
SEND_COMMAND <DEV>,'P<OUTPUT>L<LEVEL VALUE> [T<TIME>]'
Variables:
OUTPUT: Any Output ('1', '2', '3', or '4')
LEVEL VALUE: 0 - 255 or 0 - 100% (where 0 is low voltage)
TIME (optional): 0 - 255 in 0.1 second increments
Examples:
SEND_COMMAND <DEV>,'P1L50%'
Ramps Output 1 from its current value to 50% (mid voltage level) at the "CURRENT OUTPUT 1 RAMP
RATE".
SEND_COMMAND <DEV>,'P2L255T30'
Ramps Output 2 to maximum voltage level in 3 seconds.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Send_Commands (Cont.)
Command
Description
PN
Sets the value of either the minimum output voltage allowed for an output, or the minimum position
voltage expected for an input. Voltage settings are rounded to the nearest D/A or A/D code. Voltage
settings for Outputs are absolute levels and are unaffected by any software scaling functions. Negative
voltages are not valid for Input 3.
Syntax:
SEND_COMMAND <DEV>,'P<I/O>N<LEVEL VALUE>'
Variables:
I/O: Any input or output ('1','2','3','4','5','6','7','8')
LEVEL VALUE: -12.000V to +12.000V
Examples:
SEND_COMMAND <DEV>,'P1N5.023V'
Sets the minimum output level for Output 1 to 5.023V.
SEND_COMMAND <DEV>,'P1N-5.023V'
Sets the minimum output level for Output 1 to -5.023V.
SEND_COMMAND <DEV>,'P7N5.023V'
Sets the minimum of the expected input range for Input 7 to 5.023V.
PR
Sets the CURRENT OUTPUT <x> RAMP UP TIME and/or CURRENT OUTPUT <x> RAMP DOWN
TIME of the specified Output where TIME is the time to ramp the full range. It can be set to ramp both
down to up and up to down or just down to up or just up to down.
Syntax:
SEND_COMMAND <DEV>,'P<OUTPUT>R<TIME>[U|D]'
Variables:
OUTPUT: Any Output '1', '2', '3', or '4'
TIME: 0 - 255 in 0.1 second increments
U/D: Ramp Up (U) or Down (D)
Examples:
SEND_COMMAND <DEV>,'P1R25'
Sets CURRENT OUTPUT 1 RAMP UP TIME" and "CURRENT OUTPUT 1 RAMP DOWN TIME" to
2.5 seconds each for full range travel.
SEND_COMMAND <DEV>,'P2R75U'
Sets CURRENT OUTPUT 2 RAMP UP TIME to 7.5 seconds for full range travel, CURRENT OUTPUT
2 RAMP DOWN TIME remains unchanged.
SEND_COMMAND <DEV>,'P2R50D'
Sets "CURRENT OUTPUT 2 RAMP DOWN TIME" to 5 seconds for full range travel; "CURRENT
OUTPUT 2 RAMP UP TIME" remains unchanged.
PU
Sets the level to which this Output is set immediately after power-up and before any Output is
commanded.
Syntax:
SEND_COMMAND <DEV>,'P<OUTPUT>U<LEVEL VALUE>'
Variables:
OUTPUT: Any Output ('1', '2', '3', or '4')
LEVEL VALUE: 0-255
Example:
SEND_COMMAND <DEV>,'P1U127'
Sets the power up output level for Output 1 to 127.
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NXC-VAI4 Analog Voltage Control Card
NXC-VAI4 Send_Commands (Cont.)
Command
Description
PX
Sets the value of "I/O <x> MAXIMUM" which is either the maximum output voltage allowed for an
Output, or the maximum position voltage expected for an Input.Voltage settings are rounded to the
nearest D/A or A/D code. Voltage settings are absolute levels and are unaffected by any scaling
functions. Negative voltages are not valid for Inputs.
Syntax:
SEND_COMMAND <DEV>,'P<I/O>X<LEVEL VALUE>'
Variables:
I/O: Any input or output ('1', '2', '3', '4', '5', '6', '7', '8')
LEVEL VALUE: 12.000V to +12.000V
Examples:
SEND_COMMAND <DEV>,'P1X5.023V'
Sets the maximum output level for Output 1 to 5.023V.
SEND_COMMAND <DEV>,'P7X5.023V'
Sets the maximum of the expected input range for Input 7 to 5.023V.
PZ
Sets one of the two "set point" variables "I/O <x> SET POINT H|L" (high or low). These variables are
used to calculate calibration parameters for I/O <x> (input or output). Receiving this command with no
voltage specified returns the
specified set point to the default value.
Syntax:
SEND_COMMAND <DEV>,'P<I/O>Z<VOLTAGE>H|L'
Variables:
I/O: Any input or output ('1', '2', '3', '4', '5', '6', '7', '8' plus '0' for EREF)
VOLTAGE: The current actual/measured voltage at the I/O.
Examples:
SEND_COMMAND <DEV>,'P1Z0.5VL'
Creates a low-end calibration point associating the current D/A code with 0.5 volts.
SEND_COMMAND <DEV>,'P1Z11.5VH'
Creates a high-end calibration point associating the current D/A code with 11.5 volts.
SEND_COMMAND <DEV>,'P0Z0.1VL'
Creates a low-end calibration point associating the current EREF A/D code with 0.1 volts.
SEND_COMMAND <DEV>,'P1ZL'
Returns the Output 1 lower set point to its default.
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NXC-VAI4 Analog Voltage Control Card
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NXC-VOL4 Volume Control Card
NXC-VOL4 Volume Control Card
The NXC-VOL4 Volume Control Card (FG2024) provides four discrete volume control channels with LED feedback.
The volume control channels can be programmed for mono or stereo operation, and balanced or unbalanced audio
connections. It supports programmable audio levels, audio mute, variable ramp speeds and preset levels.
Use the on-board jumpers to set the gain/attenuation (Unity, Pro level (+4dBu) to Consumer level (-10dBu) conversion,
I/O Jumpers (CH1-CH4)
FIG. 8 NXC-VOL4 Volume Control card
Specifications
NXC-VOL4 Specifications
Power Requirements 197 mA @ 12 VDC
Volume 1-4
Four volume channels
Status 1-4
(3 LEDs per channel)
•
•
Yellow LED shows level-up/down activity
Red LED shows mute mode
LED 1: Channel 1 RAISE (yellow)
LED 2: Channel 1 LOWER (yellow)
LED 3: Channel 1 MUTE (red)
LED 4: Channel 2 RAISE (yellow)
LED 5: Channel 2 LOWER (yellow)
LED 6: Channel 2 MUTE (red)
LED 7: Channel 3 RAISE (yellow)
LED 8: Channel 3 LOWER (yellow)
LED 9: Channel 3 MUTE (red)
LED 10: Channel 4 RAISE (yellow)
LED 11: Channel 4 LOWER (yellow)
LED 12: Channel 4 MUTE (red)
Gain jumpers 1-4
•
•
Unity - Maximum Input Level: +10dBm
Pro level to Consumer level conversion (attenuation of +4dBu IN to -10dBu OUT)
Maximum Input Level: +10dBm
•
Consumer level to Pro level conversion (gain of -10dBu IN to +4dBu OUT)
Maximum Input Level: +6dBm
Connections/wiring
Audio Specifications
Two 10-pin 3.5 mm captive-screw terminals
•
•
•
•
•
Frequency response of 15 Hz - 25 KHz·
THD less than .005% at nominal output level·
S/N ratio greater than 100 dB (IHF A)·
Crosstalk less than 80 dB·
Logarithmic attenuation range of 95 dB
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NXC-VOL4 Volume Control Card
Pinouts, Signals, and Functions
NXC-VOL4 Pinouts, Signals, and Functions
Pin
Signal
Balanced Function
Unbalanced Function
Channel 1
1
2
3
4
5
GND
Audio GND
Audio IN
Audio GND
Audio IN
Input 1+
Input 1-
Audio IN
Audio GND
Audio OUT
no connection
Output 1+
Output 1-
Audio OUT
Audio OUT
Channel 2
6
GND
Audio GND
Audio IN
Audio GND
Audio IN
7
Input 2+
Input 2-
8
Audio IN
Audio GND
Audio OUT
no connection
9
Output 2+
Output 2-
Audio OUT
Audio OUT
10
Channel 3
11
12
13
14
15
GND
Audio GND
Audio IN
Audio GND
Audio IN
Input 3+
Input 3-
Audio IN
Audio GND
Audio OUT
no connection
Output 3+
Output 3-
Audio OUT
Audio OUT
Channel 4
16
17
18
19
20
GND
Audio GND
Audio IN
Audio GND
Audio IN
Input 4+
Input 4-
Audio IN
Audio GND
Audio OUT
no connection
Output 4+
Output 4-
Audio OUT
Audio OUT
NXC-VOL4 Connections/Wiring
The NXC-VOL4 card contains four audio volume control channels.
Each line-level channel is isolated from system ground and can be configured for balanced or unbalanced line operation.
It supports programmable audio levels, audio mute, variable ramp speeds, and preset levels.
Each audio channel's input to output gain ratio is adjustable via the on-board jumpers shown in FIG. 8 on page 35.
Audio Channel Gain Ratio Jumper Settings
Unity
Gain
jumper not installed
-10 dB Input level/+4 dB Output level setting on pins 1 and 2
Attenuate +4 dB Input level/-10 dB Output level setting on pins 3 and 4
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NXC-VOL4 Volume Control Card
NXC-VOL4 Channel Assignments
The NXC- VOL4 channel assignments are listed in the following table. This card has 2 ports with 2 audio "channels" in
each port. The two audio "channels", which can be used as right and left, should not be confused with the channel
assignments, which are sent to and from the card.
NXC-VOL4 Channel Assignments (per port)
Port 1
Port 2
Description
Channel: Channel:
1
2
3
1
2
3
While channel is on, ramps the volume on audio channels 1 and 2 up (increase).
While channel is on, ramps the volume on audio channels 1 and 2 down (decrease).
While channel is on, the volume on audio channels 1 and 2 are muted (lowest volume); when
channel is off, the volume levels are restored to their previous levels.
4
5
6
4
5
6
While channel is on, ramps the volume on audio channel 1 up (increase).
While channel is on, ramps the volume on audio channel 1 down (decrease).
While channel is on, the volume on audio channel 1 is muted (lowest volume); when channel is
off, the volume level is restored.
7
8
9
7
8
9
While channel is on, ramps the volume for audio channel 2 up (increase).
While channel is on, ramps the volume for audio channel 2 down (decrease).
While channel is on, volume for audio channel 2 is muted (lowest volume); when channel is off,
the volume level is restored.
Ramping a volume channel while the mute channel is on will not automatically turn off the mute channel but the
ramping will still occur; the volume change will be noticed when the mute channel is turned off. For setting ramp rates
NXC-VOL4 Levels
Volume (audio) channels 1 and 2 use levels 1 and 2 respectively. For reading current volume levels and displaying
bargraphs seeCREATE_LEVEL andSEND_LEVEL. The two levels associated with each port of the NXC-VOL4 Control
Card are listed in the table below:
NXC-VOL4 Levels
Port 1
Port 2
Level Description Level Description
1
2
Output #1
Output #2
1
2
Output #3
Output #4
CREATE_LEVEL
This keyword creates an association between a specified level of a device and a variable that will contain the value of the
level.
This can only appear in the DEFINE_START section of the program.
CREATE_LEVEL DEV, Level, Value
Parameters:
DEV: The device from which to read the level.
Level: The level of the device to read.
Value: Variable in which to store the level value.
DevLev: A DEVLEV structure.
Value: Variable in which to store the level value CREATE_LEVEL DevLev, Value.
During execution of the program, NetLinx continuously updates the variable to match the level that it represents.
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NXC-VOL4 Volume Control Card
SEND_LEVEL
This keyword sends a value to a specific level on a NetLinx device/port.
The syntax follows any one of the four following examples:
SEND_LEVEL DEV, Level, Value
SEND_LEVEL DEV[ ], Level, Value
SEND_LEVEL DEVLEV, Value
SEND_LEVEL DEVLEV[ ], Value
Parameters:
DEV: Device containing the specified level
Level: Number of the level to receive the new value
Value: New level value
DEV[ ]: Device array (each device contains the specified level)
DEVLEV: Device-level to receive the new value
DL[ ]: Device-level array (each will receive the new value)
Programming Information
These NetLinx Send_Commands control the NXC-VOL4.
NXC-VOL4 Send_Commands
Command Description
PL
Ramps specified (audio) channel(s) from current level to a specified preset level or percentage at the
current rate or optionally in a specified amount of time.
Syntax:
SEND_COMMAND <DEV>,'P<Output Channel>L<Level>[T<Time>]'
Variables:
Output Channel: Target audio channel number (0-2). Output channel 0 means both channels 1 and 2.
Level: Target level (0-255 or 0-100%). Level 0 is lowest volume (same as mute) and 255 (or 100%) is
maximum volume.
Time: Specifies the amount of time (in .10-second increments) that it takes to ramp the specified audio
channel to the specified level.
Example:
SEND_COMMAND MYDEVICE,'P0L50%'
Ramps both audio channels on MYDEVICE to 50% volume at the current ramp rate.
PR
Sets the ramp rate of the specified channel(s) where Time is the time to ramp the full range both down to
up and up to down or optionally just down to up or just up to down. If Time is set to 50, it takes 5 seconds to
ramp through the full range of 0 to 255 (0-100%). It would take 2.5 seconds to ramp through half of the
range and so on.
Syntax:
SEND_COMMAND <DEV>,'P<Output Channel>R<Time>[U|D]'
Variables:
•
•
Output Channel: Target channel number (0-2). Output channel 0 means both channels 1 and 2.
Time: Specifies the amount of time (in .10-second increments) that it would take to ramp the full range of
0-100% (down to up and up to down or optionally just down to up or just up to down).
•
U|D: Ramps the specified channel(s) from down to up (U) or from up to down (D).
Example:
SEND_COMMAND MYDEVICE,'P0R50''
Sets ramp rate of audio channels 1 and 2 to five seconds full range from down to up and up to down.
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NXC-VOL4 Volume Control Card
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